Help w/ key bindings!!!

So... I accidentally reset to default my key bindings... After reorganizing everything, now every time I press the LMB on a vehicle (Which I set as Zoom both On Foot, On Vehicle and On Helicopter) I zoom AND fire. And every time I press the RMB on a vehicle (Which I set as Fire both On Foot, On Vehicle and On Helicopter) I zoom AND fire too! The "tip" box says RMB is to Zoom, but that's not what I set to!

So I reset all the key bindings to default again, re-configured it one more time, but the problem is still there! Also: I made sure there wasn't any duplicated key for the LMB and the RMB.

It seems that the game is interpreting both the default and my custom key binding. (The reason why I customize my key binding is because I use the mouse with the left hand.)